Home / 13,513.92-20,271.96-4,750.80

Finding the Fourth Proportional to 13,513.92, 20,271.96 and 4,750.80

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Solution

The fourth proportional to 13,513.92, 20,271.96 and 4,750.80 is: 7,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.92 : 20,271.96 = 4,750.80 : x
  2. Step 2: Convert to fraction form
    13,513.92/20,271.96 = 4,750.80/x
  3. Step 3: Cross multiply
    13,513.92x = 20,271.96 × 4,750.80
  4. Step 4: Simplify right side
    13,513.92x = 96,308,027.57
  5. Step 5: Solve for x
    x = 96,308,027.57/13,513.92
  6. Step 6: Final answer
    x = 7,126.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.